Drum winding-machine



B. D. Co-PPAGE.

v .DRUM WINDING MACHINE. v 4 l Y APPLICAT'IQN HED JULY 30,1911.' y

, 1,342,532. PatentedJune 8, 1920.

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D. coPPAGE. f DRUM WINDING MACHINE. APPLICATION FILED JULY 36.1917' 1,342,532", y .y .Patedune 8,1920.

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DR'UM'W'INDING MACHINE. APPLICATION .FILED IIIIYao. I9II.

Pnted June s, 1920.

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'III f r I I I I I @tto/amend A BENJAMIN DENVER COPPAGE, OF WILMINGTON, DEIAWARE.

DRUM WINDING-MACHINE.

To all whom t may concern.'

Be it known that I, BENJAMIN DENVER CorrAGE, a citizen of the United States of America, and a resident of IVilmington, Delaware, have invented a new and useful Improvement in Drum finding-Machines, which invention is fully set forth in the following specification.

This invention relates to improvements in winding webs of material, and more particularly to drum winders for paper-making machines.

In paper-making machines producing paper in web form, the. finished paper is` ous objections, particularly when large winding machines are used. Seldom, the thickness of the paper is uniform. One edge may be thicker than the. other. IVhile, for example in newspaper, this difference may n ot amount to more than 1/10,()00 inch, the cumulative difference in a full roll of newspaper' becomes apparent in the production of imperfect rolls of paper. In winding machines which take the paper from slitters and wind the several webs on cores juxtaposed on a long shaft, adjacent rolls' of paper if wound imperfectly sometimes have their ends telescoped, thereby ruining many hundreds of feet of paper. Again, in modern drum-winders, the paper-roll shaft which is several feet long and which is supported at its ends in bearings vertically mov.- able, does not remain in alinement during its initial lateral displacement. The resultant olf the forces acting on it causes it to bow upward until the paper roll reaches a diameter of about twelve inches. During the beginning of winding under such conditions, the pressure at the ends of the roll is very great as compared 'with that .between the ends, resulting in increased winding Specification of Letters Patent.

Patented June s, 1920.

Application filed July 30., 1917. Serial No. 183,603.'

friction at the ends and causing the layers of paper extending back from the ends to take a spiral twist. This defect in the roll sometimes continues until a diameter of twelve inches is attained. The core of the roll twelve inches in diameter-is thereby ruined. Further, the winding drums in large machines sag at their centers, thereby preventing uniform -frictional contact along their lengths and further contributing to imperfect winding; and often, if not commonly, the long paper-ro-llshafts are more or less crooked and introduce winding troubles of their own.

-My invention overcomes, in large part if not entirely, the above objections, and resides in applying to the ends of the laterally displaceable paper-roll shaft which receives the cores on which the paper is wound, a decreasing lifting force sufficient to relieve the upward bow in the shaft during the initial winding of the paper. While this may be accomplished bya variety of means, 'I

prefer to use aweighted lever arm acting through a rock shaft having connections with the vertically movable bearings of the paper-roll shaft, the arm being so located on the rock shaft as to permit freedom of movement in its swings and so positioned in rel spect to the vertical as to decreasingly assist the upward lateral displacementof the paper roll during the initial winding of the paper, thereby overcoming the upward bow of the shaft.

My invention further resides in providing compensating means for overcoming the 'effects of unequal thickness of the selvages of the paper and for securing proper alinement l of the winding drums and paper-roll-shaft. This means comprises .adjusting devices adapted to angularly shift the. axes of the4 paper-roll shaft and of the winding drums` in respect to each other and to the paperroll shaft. By properly adjusting the paperroll shaft slightly out of'horizontal, and adjusting the winding drums horizontally, frictional contact of the winding drums and paper-roll may be made to compensate for diii'erences in thicknesses to produce va properly formed roll of paper. urther, my invention resides in providing means for compensating for the sagof the winding drums While cooperating with the spreader whose function is to` separate the slit Webs as they pass to the winder. This tion, showing the top of one of theA paper- 'A tov means consists in providing the wind-ingward thrusts of the ends of the shaft are cushioned by the springs.

In order 'that the invention may be more readily understood, reference is had to the accompanying drawings which illustrate, by Way of example, my improvements applied to a drinn-winding machine for winding paper. Such drawings, however, are intended to assist the description and not to define the limits of the invention.

In said drawings z Figure 1 is a side elevational view showing a two-drum winding machine provided with my improvements;

Fig. 2 is a front elevational view of the machine shown in Fig. 1;

Fig. 3 is a plan detail view, partly in secroll bearing supports with its stationary guidefand the dial on one of the supportadjusting devices;

Fig. 4 is a detail view with parts broken away to show the manner of connecting` one of the paper-roll bearings with its vertically movable sprocket chain;

Fig. 5 is a detail view in longitudinal section, showing a two-way ratchet device; and

Fig. 6 is a plan detail view showing adjusting means for the drum-winding bearings.

In the drawings, 1 is the base of the drumwinding machine, and 2, 2 are upright-s. Drum-winding cylinders 3, 4, positively driven at the same or different speeds by any suitable means, .have their hubs supported in bearing lboxes 5, 6 which rest partly on a plate 7 supported on the frame of the machine and partly on lsets of wedge-sl1aped adjusting blocks 8 held from side displacement by upturned edges of plate 7. These wedgesv are clearly shown in Fig. 6 and each is provided with a slot for receiving a setscrew 9 which p asses through a side extension 10 of the bearing and, by aid of a mit,

' clamps the bearing firmly to its seat. Loosening of the nuts`on screws 9 lpermits the wedges to .be moved endwise thereby laterally displacing, by their wedge faces, the bearing boxes and angularly' adjusting the axes of the winding-drums in respect to each other. It is to be noted that means for adjusting the position of the bearings of the winding drums constitutes one feature of my invention. Uprights 2, 2 are each provided with a vertical guide 11 .on which slides a member 12 provided at its lower end with a bracket projection 13 constituting a bearing for the end of a removable paperroll shaft 14 on which are secured the usual cores for receiving the paper web. Suitable wound on the cores of the paper-roll shaft.l

This manner of assisting the lifting of the paper-roll is fully explained in U. S. Patent No. 667 ,87 9 referred to above.

Means are also provided to prevent the sudden drop of the weighted arms 17 from their. elevated position and, while any suitable means for the purpose may be used, I prefer my improved means which consists of ratchet mechanism, Fig. 5, which may be connected to rock shaft 16 through gears 19, 20, 2l, clutch 35, and gear 22. The detailed 'construction of this ratchet mechanism is shown in Fig. 5 and comprises a shaft 23 keyed into a sultable recess 1n one of the -uprights 2, and on this shaft is mounteda loose 'i gear 1.9 one face of which is provided with ratchet teeth. The end of shaft 23 provided with an'interlorly threaded recess for 'receiving a threaded member 25 extending from a cap member 26 fitting over 'the end of shaft 23 and held against rotation by means oi' a keypin 27 after the cap has been screwed down on a spring 28 retained in position by a barrel 29 the end face of which is provided withratchetteeth designed to engage the companion teeth in the face the action of spring 28. Barrel 29 is lprovided with an end closure 3.9c'through ih-ich passes afrod 31 the 'outer end of which is of gear 19 under l provided with a hand wheel 32 fast thereto,

the inner end having a cam member integral therewith and adapted to be moved into and out of engagement with a rentering cam surface 34 formed on the end of the cap member 26. With the cam surfaces 33 and 34 out of engagement, as shown, the ratchet device is in idle position, but, if the cam-- surfaces are brought into engagement by turning the wheel 32 through a quarter turn, the companion ratchet members move into engagement. 'If the clutch 35 is thrown into engagement with pinion 21, the rotation of rock shaft 16 is resisted by the ratchet means, since the power to turn pinion 19 through the gear train 22, by spring 2S until itsl tension 1s overcome, when it again offers its resistance thereby 21, 20 is resistedv effecting a stepdown movement of the weighted arms; Suitable means are provided for hand rotation of .rock shaft 16 to bring the weighted arms 17, and otherparts Connected therewith, into operative position. For this p'urpose, a hand-wheel 36 is loosely mounted on the end of the rock shaft, and

to the wheel is made fast a pinion 37 alsol loose on the rock shaft. This pinion meshes lwith a large gear 2() which may be connected through clutch vwith gear 22 fast to the rock shaft. By releasing the ratchet device in the manner above described, the handwheel 36 may be used to rotate the rock shaft into any desired position.

So much of the drum-Winder as above described, except that portion relating to the adjustment of the drum-winding bearings and to the ratchet mechanism above described, is part of the old art and well understood, butl a detailed description has been given of so much of the Winder as to enable my improvements thereon to be more readily understood.

In order that the paper-roll shaft 14 may be prevented from bowing upward, I place on the end of rock shaft 16, outside of the standard 2 where freedom of movement may be secured, a weighted arm 38 and so position the arm on the rock shaft that it will through the connecting medium of sprocket chain 18 `and bracket bearing member 12. A suitable position for arm 38 to effect this result is where the arm is arranged horizontally or at an angle with and below the horizontal and on the side of the vertical permitting its lifting action on shaft 12. The proper position of lifting arms 17 in respect to weighted arm 38 is about 90 or more to the rear of the latter. These arms should be in their 'zenith position when weighted arm 38 is moving toward its nadir position.

To compensate for the unequal thicknesses of the selvage of the paper as it is wound on the paper-shaft 14, the bearings of the winding drums 3, 4 are provided with adjustments'of the character above described, and adjusting meansare also provided for raising and lowering either or both ofthe end bearing members 12 in respect to their supporting sprocket chains 18. In Fig. 4, I have shown the two ends of the sprocket chain 18 terminating in threaded link members 39, the threads on both links being either righ-handed or left-handed- A sleeve 40 is inserted through an opening formed in a shoulder 41 of the member 12, and springs 42 are slipped over the ends of the sleeve, the lower spring being preferably stronger than its upper companion spring. Exterior threads are provided on the sleeve 40 to', re-

ceive lock nuts 48A to hold the springs inv place. An annular dial plate 44 is seated on the upper nut 43 and is secured thereto by a setfscrew 45. The face ofannular plate 44 is provided with graduations or other indicating means shown in plan view in Fig. 3. As a ybench mark for these graduations, the corner of the guide llf'ris peculiarly fitted for this purpose as it constitutes a fixedvertical line along which the dial .moves The interior of the sleeve is provided with threads to receive the threaded, portions of the links 39 which 'are screwed into the.

sleeve and nally coupled withthe end links of the sprocket chain. Owing'to the fast connection of the sleeve 4() with the nut 43 and dial plate 44, any movement impartedto turn the latter causes the sleeve to turn up or down on threaded link members 39 and thereby raises or lowers the paper-shaft bearing member 12 on the sprocket chain 18. Any desired angular displacement of paper shaft 14 in a vertical plane can thus be made,

thereby introducing an angular relation between the axis of the paper shaft andthe horizontal plane in which the axes of the winding drums are made to angularly vary. By making proper adjustments of the paper shaft by aid of dial plate 44, and by adjusting the angular relation of the axes of the winding drums by aid of their adjusting wedges, compensation can be made for the ,objectionable'efects in winding paper hav- 1 mg different thicknesses at the edges. Should the paper shaft be crooked, asit usually is in the case of shafts used in vlarge winding machines, the springs 42 cushion the irregularities of movement of the shaft and, in large measure, secure a resulting rotation that is smooth.

In order to overcome the sagin the winding drums and to' facilitate spreading of the web, 1 have shown in exaggerated outline drum 4 provided with a crown 46 or con.

the trimming knives, and over the spreader f bar, devices all well known 1n this art. The

ends of the webs of paper are prcperly se'- cured to cores which are mountek on and made fast to paper shaft 14 which has been lowered 4by manipulating hand-wheel 36 into position to contact with winding drums v 3, Paper shaft.14 angularly adjusted in lts vertical plane by manipulating dial plate 44, the extent being determined by the inequality of thickness of paper to be compensated. The Winding drums are also adjusted in. their horizontal plane by aid of 'y the wedges 8 to properly position them in relation to the `paper roll, the extent ofthe adjustments being dependent upon the irregularity of the paper and the direction of lead or run to the paper shaft, and sometimes on the kind of paper. The weighted arm 38 will be in position to exert a decreasing lifting effect at the ends of the paper shaft through sprocket chain 1.8 and member 12, and arms 17 will exert, in their elevated position, little lifting action on the paper shaft. The ratchet device is set in the manner described to permit a step-down movement of the rock' shaft, and the clutch is thrown into engagement. Iower is applied in anysuitable manner to di'ive the drums 25, e-ivhich, by reason of their frictional contact with the paper, force the paper shaft to revolve and begin winding.

. If the several adjustments have been propei'ly made, the paper shaft will revolve Without bowing upward, even if the shaft is very long. The paper ivill be Wound in separate rolls without tclescoping of their ends, largely due to the use of crowned drums, and the paper will be free 'rom spiral creases, the 'center being wound as evenly as the outer layers. l

1While I have described the weighted arm 38 as positioned for lifting pur Joses, it may be 'used in other positions for effecting other results due tothe fact of locating the" arm outside the supporting frame, where it has freedom of movement. Further, while the compensating means have been described in connection with a paper-winding machine, they might be employed in machines Winding other materials in endless form, and I therefore do not desire to be limited in their use to paper machines.

lVhat is claimed is 1 l. In a winding machine of the character described, a laterally displaceable shaft on which material is to bewound, and a plu-4 rality of gravity actuated means for assisting the displacement of said shaft, one of said means being designed to move away' from a neutral position and another'of said means moving toward a neutral position as the shaft of material enlarges.

2. In a winding machine of the character described, a laterally movable shaft on which material is to be Wound, traveling supports for the ends of said shaft, and weighted arms angularly displaced from each other having' connections with said supports and designed to de'creasingly assist the Adisplacement of said'shaft as the material on the shaft increases to a predetermined amount and aftcr\\'ard to increasingly assist said displacement.

3. In a winding machine of the character described, the combination of .a laterally movable shaft on which material is to be wound, endless carriers provided with bear ing brackets for said shaft, a rock shaft having Weighted arms angularly displaced thereon'aiid operable by said endless cirriers, said weighted arms when moving in `one portion of their path having a resultant A shaft.

5. In a winding machine of the 'character described, a laterally displacea'ble shaft on which material is to be Wound, means for decreasingly assisting the displacement of the shaft as the material on the shaft increases to a predetermined amount, winding drums for effecting rotation of said shaft, endless carriers each provided with means adjustable 'on said carriers, members engaging said means and having bearings for said shaft, and meansI for angularly adj usting the axes of said drums in relation to each other.

6. Ina Winding machine of the character described, a laterally displaceable shaft olii which paper is to 'be Wound, means for decreasingly assisting the displacement of the shaft as the material-on the shaft increases -to a predetermined amount, endless carriers each provided with means adjustable on said carriers, and members engaging with said means and provided With bearings for* said shaft. j

7. In a windingmachine of the character described, a laterally movable shaft on 'which material is to be wound, means for decreasingly assisting .the displacement of the shaft as lthe material on the shaft increases to a predetermined amount, winding drums for effecting rotation'of said shaft, endless carriers each provided with an adjustable sleeve having an indicating dial, a member engaging said sleeve and having yielding means opposing its movement in opposite directions on said sleeve, said member provided with bearings for'said shaft, and means for adjusting the axes of said drums in relation to each other.

S. In a winding machine of the character described, a Irock shaft provided with a weighted arm, and ratchet mechanism comprising a driven member having connections with said shaft and a spring-prcssed member provided with tension adjusting means, said second member being designed to yield under predetermined turningmovement of iso the rock shaft in one direction and to pre-A vent movement when said rock shaft tendsi to move in :the opposite directon 9. Ratchet mechanism comprising a re-Z cessed stationary-Shaft interorly threaded, a revollible'ratchet Wheel on said shaft, a second non-revoluble ratchet member longitudinally movable onxsaicl shaft, 'a spring normally tending to move the second member into engagement' with said first member, and spring tensioning means compris-4 lng an abutment member for the spring hav-l ing threadedengagement with said reeessj and means for locking said member against rotation.

In testimony whereof I have ,signed this specification.

BENJAMIN DENVER COPPAGE. 

